Reason I asked: I have a long time interest in Crytozoology-the
search for Bigfoot and things like that....Flathead Lake is supposed
to have an Ogopogo/Champ/Nessie type monster in it. Many folks
think it might be a sturgeon, which is not unlikely. I seem to recall
an 11-footer was taken out of either Flathead or a nearby lake in
recent years....
Having lived in North Dakota, though, I wouldn't blame you for
not wanting to anywhere near the lake this time of year!

I had forgotten about my friend Tim telling me that story.He said a lot of locals and tourists alike had seen this creature.Kinda makes you wonder what's out there in our world that man hasn't discovered.